Series N2: 2 Stage Planetary Gearbox

Output speed 0.425‐445 r/min
Ratio range 12.67-50.9
Input power 0.25KW-200kw
Mounting position all positions
Mounting dimensions Standard /custom
Reduction ratio i >3
Permit torque range ≤ 540000N. M

Our 2 stage gearboxes for planetary use (N2 series) are engineered for extremely efficient (over 95 percent) and greater energy density. This is why they are modular designs that can be assembled according to specific customer needs.

The result of our work is every 2-stage planetary gearbox (N2 series) is built to withstand massive axial and radial loads on the shaft at the output. Additionally, every two-stage gearbox features impressive torque, drive effectiveness, and capacity to load.

Additionally, the effectiveness of a gearbox planetary is due to the distribution of torque in a proportional manner inside this gearing system. This decreases wear and boosts power transfer.

Our 2-stage planetary gearboxes (N2 series) come with steel casings made of ductile iron for strength and resistance to antilock. They also have a case hardening to ensure a superior surface finish that helps to improve the efficiency of every 2-stage gearbox.

We offer a broad selection of planetary gearboxes that are 2-stage (N2 series) to select from. We are a well-known maker of reduction gears for planetary gears.


Key Features
  • Modular design, combined according to customer requirements
  • Heavy bearing, Designed for heavy-duty use
  • Gearing that is hardened, long-lasting with high reliability
  • Low-speed shaft design




Torque range 1000 … 540000 Nm Input IEC Flange
Mechanical rating (n1 = 1500 min-1) up to 200kW Electric motor
Gear ratios 12.67 … 50.9 Solid input shaft with or without fan cooling – inch or metric dims.
Gear unit versions In line Applicable AC motors Integral motors and brake motors
IEC-normalized motors and brake motors
Mounting type Foot Single and dual-speed motors
Flange mounted Main brake features DC and AC supply
Torque-arm Faster brake reaction through an electronically controlled rectifier
Output shaft options Solid shaft Main motor options Thermistors and thermostat sensors
Splined shaft Independent forced cooling
Female splined shaft Line driver and push-pull incremental encoder
Hollow shaft with shrink disc


N series planetary gearbox torque sheet with models

Gear unit size 200 201 240 241 280 281 353/354 355 400 401
Normal output torque
1500 2000 3500 4000 4300 7300 13000 16000 20000 23000
Gear unit size 428 429 445 446 510 542 543 695 810 885
Normal output torque
26000 30000 32000 43000 63000 75000 100000 150000 300000 420000